ZyXEL Communications unified security gateway User Manual
ZyWALL USG 20/20W
Unified Security Gateway
Default Login Details
LAN Port P2, P3
IP Address https://192.168.1.1
User Name admin
Password 1234
www.zyxel.com
Version 2.21
Edition 4, 4/2011
www.zyxel.com
Copyright © 2011
ZyXEL Communications Corporation
About This User's Guide
About This User's Guide
Intended Audience
This manual is intended for people who want to want to configure the ZyWALL
using the Web Configurator.
How To Use This Guide
•Read Chapter 1 on page 29 chapter for an overview of features available on the
ZyWALL.
•Read Chapter 3 on page 43 for web browser requirements and an introduction
to the main components, icons and menus in the ZyWALL Web Configurator.
•Read Chapter 4 on page 59 if you’re using the installation wizard for first time
setup and you want more detailed information than what the real time online
help provides.
•Read Chapter 5 on page 69 if you’re using the quick setup wizards and you want
more detailed information than what the real time online help provides.
• It is highly recommended you read Chapter 6 on page 87 for detailed
information on essential terms used in the ZyWALL, what prerequisites are
needed to configure a feature and how to use that feature.
• It is highly recommended you read Chapter 7 on page 107 for ZyWALL
application examples.
• Subsequent chapters are arranged by menu item as defined in the Web
Configurator. Read each chapter carefully for detailed information on that menu
item.
• To find specific information in this guide, use the Contents Overview, the
Table of Contents, the Index, or search the PDF file. E-mail
techwriters@zyxel.com.tw if you cannot find the information you require.
Related Documentation
•Quick Start Guide
The Quick Start Guide is designed to show you how to make the ZyWALL
hardware connections and access the Web Configurator wizards. (See the
wizard real time help for information on configuring each screen.) It also
contains a connection diagram and package contents list.
•CLI Reference Guide
The CLI Reference Guide explains how to use the Command-Line Interface (CLI)
to configure the ZyWALL.
Note: It is recommended you use the Web Configurator to configure the ZyWALL.
ZyWALL USG 20/20W User’s Guide
3
About This User's Guide
• Web Configurator Online Help
Click the help icon in any screen for help in configuring that screen and
supplementary information.
• ZyXEL Web Site
Please refer to www.zyxel.com
product certifications.
for additional support documentation and
User Guide Feedback
Help us help you. Send all User Guide-related comments, questions or suggestions
for improvement to the following address, or use e-mail instead. Thank you!
The Technical Writing Team,
ZyXEL Communications Corp.,
6 Innovation Road II,
Science-Based Industrial Park,
Hsinchu, 300, Taiwan.
E-mail: techwriters@zyxel.com.tw
Need More Help?
More help is available at www.zyxel.com.
4
• Download Library
Search for the latest product updates and documentation from this link. Read
the Tech Doc Overview to find out how to efficiently use the User Guide, Quick
Start Guide and Command Line Interface Reference Guide in order to better
understand how to use your product.
• Knowledge Base
If you have a specific question about your product, the answer may be here.
This is a collection of answers to previously asked questions about ZyXEL
products.
ZyWALL USG 20/20W User’s Guide
About This User's Guide
•Forum
This contains discussions on ZyXEL products. Learn from others who use ZyXEL
products and share your experiences as well.
Customer Support
Should problems arise that cannot be solved by the methods listed above, you
should contact your vendor. If you cannot contact your vendor, then contact a
ZyXEL office for the region in which you bought the device.
See http://www.zyxel.com/web/contact_us.php for contact information. Please
have the following information ready when you contact an office.
• Product model and serial number.
•Warranty Information.
• Date that you received your device.
• Brief description of the problem and the steps you took to solve it.
Disclaimer
Graphics in this book may differ slightly from the product due to differences in
operating systems, operating system versions, or if you installed updated
firmware/software for your device. Every effort has been made to ensure that the
information in this manual is accurate.
ZyWALL USG 20/20W User’s Guide
5
Document Conventions
Warnings and Notes
These are how warnings and notes are shown in this User’s Guide.
Warnings tell you about things that could harm you or your device.
Note: Notes tell you other important information (for example, other things you may
need to configure or helpful tips) or recommendations.
Syntax Conventions
• The ZyWALL may be referred to as the “ZyWALL”, the “device”, the “system” or
the “product” in this User’s Guide.
• Product labels, screen names, field labels and field choices are all in bold font.
Document Conventions
• A key stroke is denoted by square brackets and uppercase text, for example,
[ENTER] means the “enter” or “return” key on your keyboard.
• “Enter” means for you to type one or more characters and then press the
[ENTER] key. “Select” or “choose” means for you to use one of the predefined
choices.
• A right angle bracket ( > ) within a screen name denotes a mouse click. For
example, Maintenance > Log > Log Setting means you first click
Maintenance in the navigation panel, then the Log sub menu and finally the
Log Setting tab to get to that screen.
• Units of measurement may denote the “metric” value or the “scientific” value.
For example, “k” for kilo may denote “1000” or “1024”, “M” for mega may
denote “1000000” or “1048576” and so on.
• “e.g.,” is a shorthand for “for instance”, and “i.e.,” means “that is” or “in other
words”.
6
ZyWALL USG 20/20W User’s Guide
Document Conventions
Icons Used in Figures
Figures in this User’s Guide may use the following generic icons. The ZyWALL icon
is not an exact representation of your device.
ZyWALL Computer Notebook computer
Server Firewall Telep h o n e
Switch Router
ZyWALL USG 20/20W User’s Guide
7
Safety Warnings
• Do NOT use this product near water, for example, in a wet basement or near a swimming
pool.
• Do NOT expose your device to dampness, dust or corrosive liquids.
• Do NOT store things on the device.
• Do NOT install, use, or service this device during a thunderstorm. There is a remote risk
of electric shock from lightning.
• Connect ONLY suitable accessories to the device.
• Do NOT open the device or unit. Opening or removing covers can expose you to
dangerous high voltage points or other risks. ONLY qualified service personnel should
service or disassemble this device. Please contact your vendor for further information.
• Make sure to connect the cables to the correct ports.
• Place connecting cables carefully so that no one will step on them or stumble over them.
• Always disconnect all cables from this device before servicing or disassembling.
• Use ONLY an appropriate power adaptor or cord for your device. Connect it to the right
supply voltage (for example, 110V AC in North America or 230V AC in Europe).
• Do NOT remove the plug and connect it to a power outlet by itself; always attach the plug
to the power adaptor first before connecting it to a power outlet.
• Do NOT allow anything to rest on the power adaptor or cord and do NOT place the
product where anyone can walk on the power adaptor or cord.
• Do NOT use the device if the power adaptor or cord is damaged as it might cause
electrocution.
• If the power adaptor or cord is damaged, remove it from the device and the power
source.
• Do NOT attempt to repair the power adaptor or cord. Contact your local vendor to order a
new one.
• Do not use the device outside, and make sure all the connections are indoors. There is a
remote risk of electric shock from lightning.
• CAUTION: RISK OF EXPLOSION IF BATTERY (on the motherboard) IS REPLACED BY AN
INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.
Dispose them at the applicable collection point for the recycling of electrical and
electronic equipment. For detailed information about recycling of this product, please
contact your local city office, your household waste disposal service or the store where
you purchased the product.
• Do NOT obstruct the device ventilation slots, as insufficient airflow may harm your
device.
• Antenna Warning! This device meets ETSI and FCC certification requirements when using
the included antenna(s). Only use the included antenna(s).
• If you wall mount your device, make sure that no electrical lines, gas or water pipes will
be damaged.
Safety Warnings
8
Your product is marked with this symbol, which is known as the WEEE mark. WEEE
stands for Waste Electronics and Electrical Equipment. It means that used electrical
and electronic products should not be mixed with general waste. Used electrical and
electronic equipment should be treated separately.
ZyWALL USG 20/20W User’s Guide
Contents Overview
Contents Overview
User’s Guide .............................................................................................. .......... ...................27
Introducing the ZyWALL ............................................................................................................ 29
Features and Applications ......................................................................................................... 37
Web Configurator ......................................... .... ... ... ... .... ... ... ............................................. .......... 43
Installation Setup Wizard .................................... ............................................................. ..........59
Quick Setup ............................................................................................................................... 69
Configuration Basics .............. ............................................. ... .... ................................................ 87
Tutorials ................................................................................................. ..................................107
Technical Reference ............................................................................................................163
Dashboard ............................................................................................................................... 165
Monitor ...................................... ....................... ................... ....................... .............................. 177
Registration ..............................................................................................................................211
Interfaces ..................................... .................................................... ........................................ 217
Trunks .................................................... .......................................... ........................................ 289
Policy and Static Routes ..........................................................................................................297
Routing Protocols .................................................................................................................... 313
Zones .............................. .................... ................... .................... ................... ........................... 327
DDNS ......................................................................................................................................331
NAT ................................. ............................. .............................. ............................. ................. 337
HTTP Redirect ......................................................................................................................... 347
ALG ......................................................................................................................................... 351
IP/MAC Binding ....................................................................................................................... 359
Authentication Policy ............. ... ... .... ............................................. ... ... ..................................... 365
Firewall .................................................................................................................................... 373
IPSec VPN ................... ............................................. .... ... ............................................. ........... 391
SSL VPN ................................................................................................................................. 427
SSL User Screens .................................................................................................................. 437
SSL User Application Screens ................................................................................................447
ZyWALL SecuExtender ...... ... ... ... .... ... ... ... ............................................. .... ... ... ........................ 449
Bandwidth Management ........................................................................................................ 453
ADP ......................................................................................................................................... 467
Content Filtering .......... ... .... ... ............................................. ... .... .............................................. 487
Content Filter Reports ............................................................................................................. 513
Anti-Spam ................................................................................................................................ 521
User/Group .............................................................................................................................. 539
Addresses ........................... ................... ................... .................... ................... ........................ 555
Services .............................. ....................................................... .............................................. 561
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Contents Overview
Schedules .............................. ................................................ .................................................. 567
AAA Server .............................................................................................................................. 573
Authentication Method .............................. ... .... ... ............................................. ... .... ... ..............583
Certificates ................................... ....................... ................... ....................... ........................... 589
ISP Accounts ............................................ ... .... ... ............................................. ... .... ..................611
SSL Application ....................................................................................................................... 615
Endpoint Security .................................................................................................................... 621
System ................................ ...................... ....................... ...................... .................................. 629
Log and Report ........................................................................................................................ 679
File Manager ............................................................................................................................693
Diagnostics ............................................................................................................................ 705
Packet Flow Explore ................................................................................................................ 715
Reboot ..................................................................................................................................... 723
Shutdown ......................................... ............................. ......................... .................................. 725
Troubleshooting .................................................. ..................................................................... 727
Product Specifications ............................................................................................................. 741
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ZyWALL USG 20/20W User’s Guide
Table of Contents
Table of Contents
About This User's Guide..........................................................................................................3
Document Conventions............................................................................................................6
Safety Warnings ........................................................................................................................8
Contents Overview ...................................................................................................................9
Table of Contents....................................................................................................................11
Part I: User’s Guide................................................................................ 27
Chapter 1
Introducing the ZyWALL ........................................................................................................29
1.1 Overview and Key Default Settings .....................................................................................29
1.2 Wall-mounting ........ ... .... ... ... ... .............................................. ... ... .......................................... 29
1.3 Front Panel ............................................ .... ... ... ............................................. .... ... ................32
1.3.1 Front Panel LEDs ...................................... .... ... ... ............................................. ... .... ... 32
1.4 Management Overview .......... .............................................. ... ... ..........................................33
1.5 Starting and Stopping the ZyWALL ............................ ... ... .... ... ... ... ....................................... 34
Chapter 2
Features and Applications.....................................................................................................37
2.1 Features ............................................. ............................................. .... ... ............................. 37
2.2 Applications ........... ... .............................................. ... ... ... .................................................... 39
2.2.1 VPN Connectivity ................ ... ............................................. ... .... ... ............................. 39
2.2.2 SSL VPN Network Access ............... ............................................. ... ... ....................... 39
2.2.3 User-Aware Access Control ....................................................................................... 41
Chapter 3
Web Configurator....................................................................................................................43
3.1 Web Configurator Requirements ......................................................................................... 43
3.2 Web Configurator Access ....................................................................................................43
3.3 Web Configurator Screens Overview .................................................................................. 45
3.3.1 Title Bar .................................. ... ... .............................................. ... ... .......................... 46
3.3.2 Navigation Panel .......... .... ... ... ... ... .... .......................................................................... 47
3.3.3 Main Window .......................... ............................................. ... .... ................................52
3.3.4 Tables and Lists ........ ... .... ... ... ... ... .............................................. ... ... ..........................54
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Table of Contents
Chapter 4
Installation Setup Wizard.......................................................................................................59
4.1 Installation Setup Wizard Screens ...................................................................................... 59
4.1.1 Internet Access Setup - WAN Interface ..................................................................... 59
4.1.2 Internet Access: Ethernet .......................................................................................... 60
4.1.3 Internet Access: PPPoE ............................................................................................. 61
4.1.4 Internet Access: PPTP .............................................................................................. 63
4.1.5 ISP Parameters ................................... ... ... .............................................. ... ... .............63
4.1.6 Internet Access - Finish .............................................................................................65
4.2 Device Registration ........................................................................................................... 65
Chapter 5
Quick Setup.............................................................................................................................69
5.1 Quick Setup Overview ..................................... ............................................. .... ... ................69
5.2 WAN Interface Quick Setup .................................................................................................70
5.2.1 Choose an Ethernet Interface ....................... ... ... ... .... ... ... .......................................... 70
5.2.2 Select WAN Type ................................... ... .... ... ... ... .... ... ............................................. 70
5.2.3 Configure WAN Settings ............................................................................................ 71
5.2.4 WAN and ISP Connection Settings ............................................................................ 72
5.2.5 Quick Setup Interface Wizard: Summary ................................................................... 74
5.3 VPN Quick Setup .......... ... ... ............................................. .... ... ............................................. 75
5.4 VPN Setup Wizard: Wizard Type ......................................................................................... 76
5.5 VPN Express Wizard - Scenario ......................................................................................... 77
5.5.1 VPN Express Wizard - Configuration ................................. ....................................... 78
5.5.2 VPN Express Wizard - Summary ................................. ... ... ....................................... 79
5.5.3 VPN Express Wizard - Finish .................................................................................... 80
5.5.4 VPN Advanced Wizard - Scenario ............................................................................ 81
5.5.5 VPN Advanced Wizard - Phase 1 Settings ...............................................................82
5.5.6 VPN Advanced Wizard - Phase 2 ............................................................................. 83
5.5.7 VPN Advanced Wizard - Summary ........................................................................... 85
5.5.8 VPN Advanced Wizard - Finish ................................................................................. 86
Chapter 6
Configuration Basics..............................................................................................................87
6.1 Object-based Configuration .......................... ... ... .... ............................................. ... ... ... .......87
6.2 Zones, Interfaces, and Physical Ports ................................................................................. 88
6.2.1 Interface Types .................................................... ... .... ... ............................................. 89
6.2.2 Default Interface and Zone Configuration .................................................................. 90
6.3 Terminology in the ZyWALL ....................... ... ... ... .... ............................................. ... ... ... .......91
6.4 Packet Flow ........................................... .............................................. ... ... .......................... 91
6.4.1 Routing Table Checking Flow ..................................................................................... 92
6.4.2 NAT Table Checking Flow .......................................................................... ... ... ... .... ... 94
6.5 Feature Configuration Overview ......................................................................................... 95
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6.5.1 Feature ...................................... ... .... ... ............................................. ... .... ... ................95
6.5.2 Licensing Registration ............................ ... .... ... ............................................. ... ... .... ... 96
6.5.3 Interface ....................... .... ... ... ............................................. ... .... ................................ 96
6.5.4 Trunks ................. ... ... ... .... ... ... ............................................. ... .... ................................ 96
6.5.5 Policy Routes ...................... ... ............................................. ... .... ... ............................. 96
6.5.6 Static Routes .................................... ... ............................................. ... .... ................... 98
6.5.7 Zones ..................... ... ............................................. .... ... ... .......................................... 98
6.5.8 DDNS ..... ... ............................................. ... .... ............................................. ... ... ... ....... 98
6.5.9 NAT .............................................. .... ... ... ............................................. .... ... ................ 98
6.5.10 HTTP Redirect ......................................................................................................... 99
6.5.11 ALG ........................................................................................................................ 100
6.5.12 Auth. Policy ............................................................................................................100
6.5.13 Firewall ................................................................................................................... 100
6.5.14 IPSec VPN ............................................................................................................. 101
6.5.15 SSL VPN ................................................................................................................ 101
6.5.16 Bandwidth Management ........................................................................................102
6.5.17 ADP ........................................................................................................................ 102
6.5.18 Content Filter ..........................................................................................................102
6.5.19 Anti-Spam ...............................................................................................................103
6.6 Objects ............................................ ............................................. ... .... .............................. 103
6.6.1 User/Group ....................... ............................................. ... ... .....................................104
6.7 System ............. ............................................. ... ... .............................................. ... ..............105
6.7.1 DNS, WWW, SSH, TELNET, FTP, SNMP, Vantage CNM ........................................105
6.7.2 Logs and Reports ..................................................................................................... 105
6.7.3 File Manager .......................... ... ... .... ............................................. ... ... ..................... 106
6.7.4 Diagnostics ................ ... .... ... ... ... ... .............................................. ... ... ........................ 106
6.7.5 Shutdown ..................... .... ... ... ............................................. ... .... ..............................106
Chapter 7
Tutorials.................................................................................................................................107
7.1 How to Configure Interfaces, Port Roles, and Zones ........................................................ 107
7.1.1 Configure a WAN Ethernet Interface ................................ ... ... .... ... ... ... .... ... ... ... ....... . 108
7.1.2 Configure Port Roles ................................................................................................ 109
7.1.3 Configure the DMZ Interface for a Local Network ............... ..................................... 109
7.1.4 Configure Zones ........................... .............................................. ... ... .........................110
7.2 How to Configure a Cellular Interface . ... .... ... ... ... .............................................. ... ... ... .........111
7.3 How to Configure Load Balancing ......................................................................................113
7.3.1 Set Up Available Bandwidth on Ethernet Interfaces .................................................113
7.3.2 Configure the WAN Trunk .........................................................................................114
7.4 How to Set Up an IPSec VPN Tunnel .................................................................................116
7.4.1 Set Up the VPN Gateway ..........................................................................................117
7.4.2 Set Up the VPN Connection ......................................................................................118
7.4.3 Configure Security Policies for the VPN Tunnel ...................................... ..................119
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Table of Contents
7.5 How to Configure User-aware Access Control .................................................................. 120
7.5.1 Set Up User Accounts .............................................................................................. 120
7.5.2 Set Up User Groups ................................................................................................. 121
7.5.3 Set Up User Authentication Using the RADIUS Server .......................... ... ... ... ... .... . 122
7.6 How to Use a RADIUS Server to Authenticate User Accounts based on Groups ............. 124
7.7 How to Use Endpoint Security and Authentication Policies ............................................... 126
7.7.1 Configure the Endpoint Security Objects ................................................................. 126
7.7.2 Configure the Authentication Policy ......................................................................... 128
7.8 How to Configure Service Control ..................................................................................... 129
7.8.1 Allow HTTPS Administrator Access Only From the LAN ......................................... 130
7.9 How to Allow Incoming H.323 Peer-to-peer Calls ............................................... ... ... ... .... . 132
7.9.1 Turn On the ALG .............................. ... ............................................. ... .... ................. 133
7.9.2 Set Up a NAT Policy For H.323 ................................................................................133
7.9.3 Set Up a Firewall Rule For H.323 ............................................................................ 135
7.10 How to Allow Public Access to a Web Server .......................... ...... ....... ...... ....... ...... ....... . 136
7.10.1 Create the Address Objects ...................................................................................137
7.10.2 Configure NAT ........................................................................................................ 137
7.10.3 Set Up a Firewall Rule ........................................................................................... 138
7.11 How to Use an IPPBX on the DMZ .................................................................................. 139
7.11.1 Turn On the ALG .................................................................................................... 141
7.11.2 Create the Address Objects ................................................................................... 141
7.11.3 Setup a NAT Policy for the IPPBX .......................................................................... 142
7.11.4 Set Up a WAN to DMZ Firewall Rule for SIP .......................................................... 143
7.11.5 Set Up a DMZ to LAN Firewall Rule for SIP ......... .... ... ........................................... 144
7.12 How to Use Multiple Static Public WAN IP Addresses for LAN to WAN Traffic ............... 145
7.12.1 Create the Public IP Address Range Object ............ .............................................. 1 45
7.12.2 Configure the Policy Route .................................................................................... 146
7.13 How to Set Up a Wireless LAN ........................................................................................ 146
7.13.1 Set Up User Accounts ....................................... ... .... ... ........................................... 147
7.13.2 Create the WLAN Interface ....................................................................................147
7.13.3 Set Up the Wireless Clients to Use the WLAN Interface ........................................ 150
Part II: Technical Reference................................................................ 163
Chapter 8
Dashboard.............................................................................................................................165
8.1 Overview .......... ... ... ... .... ... ... ... .............................................. ... ... ... ..................................... 165
8.1.1 What Y ou Can Do in this Chapter ............................................................................165
8.2 The Dashboard Screen ..................................................................................................... 165
8.2.1 The CPU Usage Screen ........................................................................................... 171
8.2.2 The Memory Usage Screen ...................... .... ... ... ............................................. ... .... . 172
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8.2.3 The Active Sessions Screen .................................................................................... 173
8.2.4 The VPN Status Screen ................................................ ... ... ... .................................. 174
8.2.5 The DHCP Table Screen ..........................................................................................174
8.2.6 The Number of Login Users Screen ................................. ... ... .... ... ... ... .... ... ... ... ....... . 175
Chapter 9
Monitor...................................................................................................................................177
9.1 Overview .......... ... ... ... .... ... ... ... .............................................. ... ... ... ..................................... 177
9.1.1 What Y ou Can Do in this Chapter ............................................................................177
9.2 The Port Statistics Screen ................................................................................................178
9.2.1 The Port Statistics Graph Screen ................. ... ... ... .... ... ... ... ..................................... 180
9.3 Interface Status Screen ..................................................................................................... 181
9.4 The Traffic Statistics Screen ..............................................................................................183
9.5 The Session Monitor Screen .................... ... ... ... .............................................. ... ... ........... 186
9.6 The DDNS Status Screen .................................................................................................. 189
9.7 IP/MAC Binding Monitor ............ ... ............................................. ... ... .... .............................. 189
9.8 The Login Users Screen ................................................................................................... 190
9.9 WLAN Status Screen .........................................................................................................191
9.10 The following table describes the labels in this menu.Cellular Status Screen ................. 192
9.10.1 More Information ............................ ....................................................................... . 194
9.11 USB Storage Screen ........................................................................................................195
9.12 The IPSec Monitor Screen .............................................................................................. 196
9.12.1 Regular Expressions in Searching IPSec SAs ....................................................... 198
9.13 The SSL Connection Monitor Screen ..............................................................................198
9.14 The Content Filter Statistics Screen ................................................................................ 200
9.15 Content Filter Cache Screen ........................................................................................... 202
9.16 The Anti-Spam Statistics Screen ..................................................................................... 204
9.17 The Anti-Spam Status Screen .........................................................................................206
9.18 Log Screen ...................................................................................................................... 207
Chapter 10
Registration...........................................................................................................................211
10.1 Overview ...........................................................................................................................211
10.1.1 What You Can Do in this Chapter ...........................................................................211
10.1.2 What you Need to Know .........................................................................................211
10.2 The Registration Screen .................................................................................................. 212
10.3 The Service Screen ......................................................................................................... 214
Chapter 11
Interfaces...............................................................................................................................217
11.1 Interface Overview ........................................................................................................... 217
11.1.1 What You Can Do in this Chapter ................................ ... ... ... .... .............................. 217
11.1.2 What You Need to Know ........................................................................................ 218
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Table of Contents
11.2 Port Role .................................................................... ... .... ... ........................................... 220
11.3 Ethernet Summary Screen ............................................................................................... 222
11.3.1 Ethernet Edit ..........................................................................................................223
11.3.2 Object References .................................................................................................. 232
11.4 PPP Interfaces ................................................................................................................233
11.4.1 PPP Interface Summary ......................................................................................... 234
11.4.2 PPP Interface Add or Edit ..................................................................................... 2 35
11.5 Cellular Configuration Screen (3G) .................................................................................. 239
11.5.1 Cellular Add/Edit Screen ........................................................................................ 241
11.6 WLAN Interface General Screen ..................................................................................... 248
11.6.1 WLAN Add/Edit Screen .......................................................................................... 252
11.6.2 WLAN Add/Edit: WEP Security .............................................................................. 258
11.6.3 WLAN Add/Edit: WPA-PSK/WPA2-PSK Security ................................................... 259
11.6.4 WLAN Add/Edit: WPA/WPA2 Security .................................................................... 260
11.7 WLAN Interface MAC Filter ............................................................................................. 262
11.8 VLAN Interfaces .............................................................................................................. 264
11.8.1 VLAN Summary Screen ......................................................................................... 266
11.8.2 VLAN Add/Edit ...................................................................................................... 267
11.9 Bridge Interfaces ............................................................................................................. 274
11.9.1 Bridge Summary .....................................................................................................276
11.9.2 Bridge Add/Edit ................................................... .... ... ... ... ... .... .............................. 277
11.9.3 Virtual Interfaces Add/Edit ...................................................................................... 282
11.10 Interface Technical Reference ....................................................................................... 284
Chapter 12
Trunks....................................................................................................................................289
12.1 Overview .......................................................................................................................... 289
12.1.1 What You Can Do in this Chapter .......................................................................... 289
12.1.2 What You Need to Know ........................................................................................ 290
12.2 The Trunk Summary Screen .............................................. ... ... ... ... .................................. 292
12.3 Configuring a Trunk ........................................................................................................ 293
12.4 Trunk Technical Reference .............................................................................................. 295
Chapter 13
Policy and Static Routes......................................................................................................297
13.1 Policy and Static Routes Overview .................................................................................. 297
13.1.1 What You Can Do in this Chapter .......................................................................... 297
13.1.2 What You Need to Know ....................................................................................... 298
13.2 Policy Route Screen ........................................................................................................ 300
13.2.1 Policy Route Edit Screen ....................................................................................... 303
13.3 IP Static Route Screen ....................................................................................................307
13.3.1 Static Route Add/Edit Screen ................................................................................. 308
13.4 Policy Routing Technical Reference ................................................................................ 309
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Table of Contents
Chapter 14
Routing Protocols .................................................................................................................313
14.1 Routing Protocols Overview ............................................................................................ 313
14.1.1 What You Can Do in this Chapter .......................................................................... 313
14.1.2 What You Need to Know ........................................................................................ 313
14.2 The RIP Screen ... ... .... ............................................. ... ... ............................................. ..... 314
14.3 The OSPF Screen ................... ... ... ... ............................................. .... ... ...........................315
14.3.1 Configuring the OSPF Screen .................................. ......... .......... .......... ......... ........ 319
14.3.2 OSPF Area Add/Edit Screen ................................................................................. 322
14.3.3 Virtual Link Add/Edit Screen ................................................................................. 323
14.4 Routing Protocol Technical Reference ............................................................................ 324
Chapter 15
Zones .....................................................................................................................................327
15.1 Zones Overview ............................................................................................................... 327
15.1.1 What You Can Do in this Chapter .......................................................................... 327
15.1.2 What You Need to Know ........................................................................................ 328
15.2 The Zone Screen ................................. .... ... ... ............................................. .... ... ... ...........329
15.3 Zone Edit ........................................................................................................................ 330
Chapter 16
DDNS......................................................................................................................................331
16.1 DDNS Overview .............................................................................................................. 331
16.1.1 What You Can Do in this Chapter .......................................................................... 331
16.1.2 What You Need to Know ........................................................................................ 331
16.2 The DDNS Screen ...........................................................................................................332
16.2.1 The Dynamic DNS Add/Edit Screen ...................................................................... 334
Chapter 17
NAT.........................................................................................................................................337
17.1 NAT Overview .................................................................................................................. 337
17.1.1 What You Can Do in this Chapter .......................................................................... 337
17.1.2 What You Need to Know ........................................................................................ 338
17.2 The NAT Screen ......................................... ............................................. ... .... .................338
17.2.1 The NAT Add/Edit Screen .... ... ... .... ........................................................................ 340
17.3 NAT Technical Reference ................................................................................................ 343
Chapter 18
HTTP Redirect.......................................................................................................................347
18.1 Overview .......................................................................................................................... 347
18.1.1 What You Can Do in this Chapter .......................................................................... 347
18.1.2 What You Need to Know ........................................................................................ 348
18.2 The HTTP Redirect Screen ............................................................................................. 349
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17
Table of Contents
18.2.1 The HTTP Redirect Edit Screen ............................................................................. 350
Chapter 19
ALG ........................................................................................................................................351
19.1 ALG Overview ................................................................................................................. 351
19.1.1 What You Can Do in this Chapter .......................................................................... 351
19.1.2 What You Need to Know ........................................................................................ 352
19.1.3 Before You Begin ...................................................................................................355
19.2 The ALG Screen ..............................................................................................................355
19.3 ALG Technical Reference ................................................................................................ 357
Chapter 20
IP/MAC Binding.....................................................................................................................359
20.1 IP/MAC Binding Overview ............................................................................................... 359
20.1.1 What You Can Do in this Chapter .......................................................................... 359
20.1.2 What You Need to Know ........................................................................................ 360
20.2 IP/MAC Binding Summary ............................................................................................... 360
20.2.1 IP/MAC Binding Edit ............................................................................................... 361
20.2.2 Static DHCP Edit .................................................................................................... 362
20.3 IP/MAC Binding Exempt List ........................................................................................... 363
Chapter 21
Authentication Policy...........................................................................................................365
21.1 Overview .......................................................................................................................... 365
21.1.1 What You Can Do in this Chapter .......................................................................... 365
21.1.2 What You Need to Know ........................................................................................ 366
21.2 Authentication Policy Screen ........................................................................................... 366
21.2.1 Creating/Editing an Authentication Policy .............................................................. 369
Chapter 22
Firewall...................................................................................................................................373
22.1 Overview .......................................................................................................................... 373
22.1.1 What You Can Do in this Chapter .......................................................................... 373
22.1.2 What You Need to Know ........................................................................................ 374
22.1.3 Firewall Rule Example Applications .................................. .....................................376
22.1.4 Firewall Rule Configuration Example ..................................................................... 379
22.2 The Firewall Screen ................. ... ............................................. ... ... .... .............................. 381
22.2.1 Configuring the Firewall Screen ............................... .............................................. 3 82
22.2.2 The Firewall Add/Edit Screen ................................................................................. 385
22.3 The Session Limit Screen ................................................................................................ 386
22.3.1 The Session Limit Add/Edit Screen ........................................................................ 388
Chapter 23
IPSec VPN..............................................................................................................................391
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23.1 IPSec VPN Overview .......................................................................................................391
23.1.1 What You Can Do in this Chapter .......................................................................... 391
23.1.2 What You Need to Know ........................................................................................ 392
23.1.3 Before You Begin ...................................................................................................394
23.2 The VPN Connection Screen .......................................................................................... 394
23.2.1 The VPN Connection Add/Edit (IKE) Screen ......................................................... 396
23.2.2 The VPN Connection Add/Edit Manual Key Screen .............................................. 403
23.3 The VPN Gateway Screen .............................................................................................. 406
23.3.1 The VPN Gateway Add/Edit Screen ...................................................................... 407
23.4 IPSec VPN Background Information ............................................................................... 415
Chapter 24
SSL VPN.................................................................................................................................427
24.1 Overview .......................................................................................................................... 427
24.1.1 What You Can Do in this Chapter .......................................................................... 427
24.1.2 What You Need to Know ........................................................................................ 427
24.2 The SSL Access Privilege Screen ................................................................................... 429
24.2.1 The SSL Access Policy Add/Edit Screen .............................................................. 430
24.3 The SSL Global Setting Screen ............... ... ... ... .... ... ... ............................................. ... .... . 433
24.3.1 How to Upload a Custom Logo .............................................................................. 434
24.4 Establishing an SSL VPN Connection ............................................................................. 435
Chapter 25
SSL User Screens................................................................................................................437
25.1 Overview .......................................................................................................................... 437
25.1.1 What You Need to Know ........................................................................................ 437
25.2 Remote User Login ..........................................................................................................438
25.3 The SSL VPN User Screens ................................................ ........................................... 443
25.4 Bookmarking the ZyWALL ............................................................................................... 444
25.5 Logging Out of the SSL VPN User Screens ....................................................................444
Chapter 26
SSL User Application Screens ............................................................................................447
26.1 SSL User Application Screens Overview ........................................................................ 447
26.2 The Application Screen ...................................................................................................447
Chapter 27
ZyWALL SecuExtender.........................................................................................................449
27.1 The ZyWALL SecuExtender Icon .................................................................................... 449
27.2 Statistics .......................................................................................................................... 450
27.3 View Log ..........................................................................................................................451
27.4 Suspend and Resume the Connection ....................... ..................................................... 451
27.5 Stop the Connection ........................................................................................................452
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19
Table of Contents
27.6 Uninstalling the ZyWALL SecuExtender .......................................................................... 452
Chapter 28
Bandwidth Management.....................................................................................................453
28.1 Overview .......................................................................................................................... 453
28.1.1 What You Can Do in this Chapter .......................................................................... 453
28.1.2 What You Need to Know ....................................................................................... 453
28.1.3 Bandwidth Management Examples ................................ ................... .................... . 457
28.2 TheBandwidth Management Screen ............................................................................... 461
28.2.1 The Bandwidth Management Add/Edit Screen .............. ... ..................................... 463
Chapter 29
ADP ........................................................................................................................................467
29.1 Overview .......................................................................................................................... 467
29.1.1 ADP ........................................................................................................................ 467
29.1.2 What You Can Do in this Chapter ......................................................................... 467
29.1.3 What You Need To Know ....................................................................................... 467
29.1.4 Before You Begin ...................................................................................................468
29.2 The ADP General Screen ........................ ................................................... ..................... 469
29.3 The Profile Summary Screen .......................................................................................... 470
29.3.1 Base Profiles ..........................................................................................................471
29.3.2 Configuring The ADP Profile Summary Screen ..................................................... 471
29.3.3 Creating New ADP Profiles ............................ ........................................................ 472
29.3.4 Traffic Anomaly Profiles ........................................................................................ 472
29.3.5 Protocol Anomaly Profiles .................................................................................... . 475
29.3.6 Protocol Anomaly Configuration ............................................................................. 475
29.4 ADP Technical Reference ................................................................................................ 479
Chapter 30
Content Filtering...................................................................................................................487
30.1 Overview .......................................................................................................................... 487
30.1.1 What You Can Do in this Chapter .......................................................................... 487
30.1.2 What You Need to Know ........................................................................................ 487
30.1.3 Before You Begin ...................................................................................................489
30.2 Content Filter General Screen .................... ....................................................... ..............489
30.3 Content Filter Policy Add or Edit Screen ......................................................................... 492
30.4 Content Filter Profile Screen .......................................................................................... 494
30.5 Content Filter Categories Screen ................................................................................... 494
30.5.1 Content Filter Blocked and Warning Messages ..................................................... 508
30.6 Content Filter Customization Screen .............................................................................. 508
30.7 Content Filter Technical Reference ..................................................................................511
Chapter 31
Content Filter Reports..........................................................................................................513
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Table of Contents
31.1 Overview .......................................................................................................................... 513
31.2 Viewing Content Filter Reports ............................................. ........................................... 5 13
Chapter 32
Anti-Spam..............................................................................................................................521
32.1 Overview .......................................................................................................................... 521
32.1.1 What You Can Do in this Chapter .......................................................................... 521
32.1.2 What You Need to Know ........................................................................................ 521
32.2 Before You Begin ............................................................................................................. 523
32.3 The Anti-Spam General Screen ....................................................................................... 523
32.3.1 The Anti-Spam Policy Add or Edit Screen ................................................ .............. 525
32.4 The Anti-Spam Black List Screen .................................................................................... 527
32.4.1 The Anti-Spam Black or White List Add/Edit Screen ...................................... ... .... . 529
32.4.2 Regular Expressions in Black or White List Entries ...............................................530
32.5 The Anti-Spam White List Screen .................................................................................... 531
32.6 The DNSBL Screen ......................................................................................................... 532
32.7 Anti-Spam Technical Reference ...................................................................................... 534
Chapter 33
User/Group............................................................................................................................539
33.1 Overview .......................................................................................................................... 539
33.1.1 What You Can Do in this Chapter .......................................................................... 539
33.1.2 What You Need To Know ....................................................................................... 539
33.2 User Summary Screen .................................................................................................... 542
33.2.1 User Add/Edit Screen ........................... .......... .......... ......... ....... ......... .......... .......... . 542
33.3 User Group Summary Screen ......................................................................................... 545
33.3.1 Group Add/Edit Screen .......................................................................................... 546
33.4 Setting Screen ................................................................................................................ 547
33.4.1 Default User Authentication Timeout Settings Edit Screens .................................. 550
33.4.2 User Aware Login Example ............... ... ... .............................................. ... ... ... ........552
33.5 User /Group Technical Reference ................................................................................... 553
Chapter 34
Addresses..............................................................................................................................555
34.1 Overview .......................................................................................................................... 555
34.1.1 What You Can Do in this Chapter .......................................................................... 555
34.1.2 What You Need To Know ....................................................................................... 555
34.2 Address Summary Screen ....................... ........................................................................ 555
34.2.1 Address Add/Edit Screen ....................................................................................... 557
34.3 Address Group Summary Screen ............................... ....................... ...................... ........ 558
34.3.1 Address Group Add/Edit Screen ............................................................................ 559
Chapter 35
Services.................................................................................................................................561
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21
Table of Contents
35.1 Overview .......................................................................................................................... 561
35.1.1 What You Can Do in this Chapter .......................................................................... 561
35.1.2 What You Need to Know ........................................................................................ 561
35.2 The Service Summary Screen ....................... .......................... .......................... .............. 562
35.2.1 The Service Add/Edit Screen ............................ ..................................................... 564
35.3 The Service Group Summary Screen ........................ ....... ... ... ... ... .... ... ... ... .... ... ... ... ... .... . 564
35.3.1 The Service Group Add/Edit Screen ...................................................................... 566
Chapter 36
Schedules..............................................................................................................................567
36.1 Overview .......................................................................................................................... 567
36.1.1 What You Can Do in this Chapter .......................................................................... 567
36.1.2 What You Need to Know ........................................................................................ 567
36.2 The Schedule Summary Screen ...................................................................................... 568
36.2.1 The One-Time Schedule Add/Edit Screen ............................................................. 569
36.2.2 The Recurring Schedule Add/Edit Screen ............................................ ... ... ... ... .... . 570
Chapter 37
AAA Server............................................................................................................................573
37.1 Overview .......................................................................................................................... 573
37.1.1 Directory Service (AD/LDAP) ................................................................ ................. 573
37.1.2 RADIUS Server ...................................................................................................... 574
37.1.3 ASAS ......................................................................................................................574
37.1.4 What You Can Do in this Chapter .......................................................................... 574
37.1.5 What You Need To Know ....................................................................................... 575
37.2 Active Directory or LDAP Server Summary ..................................................................... 577
37.2.1 Adding an Active Directory or LDAP Server ............. ............ ............. ............. ........ 577
37.3 RADIUS Server Summary ............................................................................................... 579
37.3.1 Adding a RADIUS Server ...................................................................................... 581
Chapter 38
Authentication Method.........................................................................................................583
38.1 Overview .......................................................................................................................... 583
38.1.1 What You Can Do in this Chapter .......................................................................... 583
38.1.2 Before You Begin ...................................................................................................583
38.1.3 Example: Selecting a VPN Authentication Method ................................................ 583
38.2 Authentication Method Objects ...................................... ................................. ................. 584
38.2.1 Creating an Authentication Method Object ........................................... ................. 585
Chapter 39
Certificates ............................................................................................................................589
39.1 Overview .......................................................................................................................... 589
39.1.1 What You Can Do in this Chapter .......................................................................... 589
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39.1.2 What You Need to Know ........................................................................................ 589
39.1.3 Verifying a Certificate ............................................................................................. 591
39.2 The My Certificates Screen ............................................................................................. 593
39.2.1 The My Certificates Add Screen ............................................................................ 594
39.2.2 The My Certificates Edit Screen ..................................................... ... .... ... .............. 599
39.2.3 The My Certificates Import Screen ........................................................................ 602
39.3 The Trusted Certificates Screen ..................................................................................... 603
39.3.1 The Trusted Certificates Edit Screen .................................................................... 604
39.3.2 The Trusted Certificates Import Screen ................................................................ 608
39.4 Certificates Technical Reference ..................................................................................... 609
Chapter 40
ISP Accounts.........................................................................................................................611
40.1 Overview ...........................................................................................................................611
40.1.1 What You Can Do in this Chapter ...........................................................................611
40.2 ISP Account Summary .....................................................................................................611
40.2.1 ISP Account Edit ................................................................................................... 612
Chapter 41
SSL Application ....................................................................................................................615
41.1 Overview .......................................................................................................................... 615
41.1.1 What You Can Do in this Chapter .......................................................................... 615
41.1.2 What You Need to Know ........................................................................................ 615
41.1.3 Example: Specifying a Web Site for Access .......................................................... 616
41.2 The SSL Application Screen ............................. .... ... ... ... .... ... ...... ... .... ... ... ... .... ... ... ... ... .... . 617
41.2.1 Creating/Editing a Web-based SSL Application Object ......................................... 618
Chapter 42
Endpoint Security.................................................................................................................621
42.1 Overview .......................................................................................................................... 621
42.1.1 What You Can Do in this Chapter .......................................................................... 622
42.1.2 What You Need to Know ........................................................................................ 622
42.2 Endpoint Security Screen ........ ... ... ... ... .... ... ... ... .... ... ... ... .... ... ... ...... .... ... ... ... .... ... ... ... ... .... . 623
42.3 Endpoint Security Add/Edit .............................................................................................. 624
Chapter 43
System...................................................................................................................................629
43.1 Overview .......................................................................................................................... 629
43.1.1 What You Can Do in this Chapter .......................................................................... 629
43.2 Host Name ....................................................................................................................... 630
43.3 USB Storage .................................................................................................................... 631
43.4 Date and Time ................................................................................................................. 631
43.4.1 Pre-defined NTP Time Servers List ............................................. ... ... .... ... ... ........... 634
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Table of Contents
43.4.2 Time Server Synchronization ................................................................................. 635
43.5 Console Port Speed ......................................................................................................... 636
43.6 DNS Overview ................................................................................................................. 636
43.6.1 DNS Server Address Assignment .......................................................................... 637
43.6.2 Configuring the DNS Screen ................................ .......................................... ........ 637
43.6.3 Address Record .................................................................................................... 640
43.6.4 PTR Record ........................................................................................................... 640
43.6.5 Adding an Address/PTR Record ............................................................................ 640
43.6.6 Domain Zone Forwarder .................. ... ... .... ... ............................................. ... ... .....641
43.6.7 Adding a Domain Zone Forwarder .............................. ........................................... 641
43.6.8 MX Record ............................................................................................................642
43.6.9 Adding a MX Record ..............................................................................................643
43.6.10 Adding a DNS Service Control Rule .................................................................... 643
43.7 WWW Overview ..............................................................................................................644
43.7.1 Service Access Limitations .................................................................................... 644
43.7.2 System Timeout ..................................................................................................... 645
43.7.3 HTTPS ...................................................................................................................645
43.7.4 Configuring WWW Service Control ........................................................................ 646
43.7.5 Service Control Rules ............................................................................................ 650
43.7.6 Customizing the WWW Login Page ....................................................................... 650
43.7.7 HTTPS Example ....................................................................................................654
43.8 SSH .............................................................................................................................. 661
43.8.1 How SSH Works ...................................................... ... ... ... ... .... ... ... ........................ 662
43.8.2 SSH Implementation on the ZyWALL ..................................................................... 663
43.8.3 Requirements for Using SSH ................................................................................. 663
43.8.4 Configuring SSH ....................................................................................................663
43.8.5 Secure Telnet Using SSH Examples ...................................................................... 665
43.9 Telnet .............................................................................................................................. 666
43.9.1 Configuring Telnet .................................................................................................. 667
43.10 FTP ...............................................................................................................................668
43.10.1 Configuring FTP ................................................................................................... 668
43.11 SNMP ....................................... ... ... ... .............................................. ... ... ........................ 670
43.11.1 Supported MIBs ............... ... ... ... .............................................. ... ... ........................ 672
43.11.2 SNMP Traps .......................... ... .... ... ............................................. ... .... ... .............. 672
43.11.3 Configuring SNMP .............. ... ... .... ............................................. ... ... ..................... 672
43.12 Vantage CNM ...............................................................................................................674
43.12.1 Configuring Vantage CNM ................................................................................... 675
43.13 Language Screen .........................................................................................................677
Chapter 44
Log and Report .....................................................................................................................679
44.1 Overview .......................................................................................................................... 679
44.1.1 What You Can Do In this Chapter .......................................................................... 679
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Table of Contents
44.2 Email Daily Report ..........................................................................................................679
44.3 Log Setting Screens .......................................................................................................681
44.3.1 Log Setting Summary ............................................................................................. 682
44.3.2 Edit System Log Settings ......................................................................................683
44.3.3 Edit Remote Server Log Settings ..........................................................................688
44.3.4 Active Log Summary Screen ............................. ............. ............. ............. ............. . 690
Chapter 45
File Manager..........................................................................................................................693
45.1 Overview .......................................................................................................................... 693
45.1.1 What You Can Do in this Chapter .......................................................................... 693
45.1.2 What you Need to Know ........................................................................................ 693
45.2 The Configuration File Screen .............................. ...................................................... .....696
45.3 The Firmware Package Screen ...................................................................................... 700
45.4 The Shell Script Screen .......................... ....................................................... .................702
Chapter 46
Diagnostics..........................................................................................................................705
46.1 Overview .......................................................................................................................... 705
46.1.1 What You Can Do in this Chapter .......................................................................... 705
46.2 The Diagnostic Screen ....................................................................................................705
46.2.1 The Diagnostics Files Screen ................................................................................ 706
46.3 The Packet Capture Screen ............................................................................................ 707
46.3.1 The Packet Capture Files Screen .......................................................................... 710
46.3.2 Example of Viewing a Packet Capture File ................................. ... ... .... ... ... ... ... ......711
46.4 Core Dump Screen ..........................................................................................................712
46.4.1 Core Dump Files Screen ......................... .......................................... ..................... 713
46.5 The System Log Screen .................................................................................................. 714
Chapter 47
Packet Flow Explore.............................................................................................................715
47.1 Overview .......................................................................................................................... 715
47.1.1 What You Can Do in this Chapter .......................................................................... 715
47.2 The Routing Status Screen ............................................................ ....................... ........... 715
47.3 The SNAT Status Screen ................................................................................................. 719
Chapter 48
Reboot....................................................................................................................................723
48.1 Overview .......................................................................................................................... 723
48.1.1 What You Need To Know ....................................................................................... 723
48.2 The Reboot Screen .........................................................................................................723
Chapter 49
Shutdown...............................................................................................................................725
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Table of Contents
49.1 Overview .......................................................................................................................... 725
49.1.1 What You Need To Know ....................................................................................... 725
49.2 The Shutdown Screen ..................................................................................................... 725
Chapter 50
Troubleshooting....................................................................................................................727
50.1 Resetting the ZyWALL .....................................................................................................738
50.2 Getting More Troubleshooting Help ................................................................................. 739
Chapter 51
Product Specifications.........................................................................................................741
51.1 Power Adaptor Specifications ..........................................................................................745
Appendix A Log Descriptions...............................................................................................747
Appendix B Common Services.............................................................................................799
Appendix C Wireless LANs..................................................................................................803
Appendix D Importing Certificates........................................................................................819
Appendix E Open Software Announcements.......................................................................845
Appendix F Legal Information ..............................................................................................935
Index.......................................................................................................................................939
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ZyWALL USG 20/20W User’s Guide
PART I
User’s Guide
27
28
CHAPTER 1
Introducing the ZyWALL
This chapter gives an overview of the ZyWALL. It explains the front panel ports,
LEDs, introduces the management methods, and lists different ways to start or
stop the ZyWALL.
1.1 Overview and Key Default Settings
The ZyWALL is a comprehensive security device. Its flexible configuration helps
network administrators set up the network and enforce security policies efficiently.
In addition, the ZyWALL provides excellent throughput, making it an ideal solution
for reliable, secure service.
The ZyWALL’s security features include VPN, firewall, content filtering, ADP
(Anomaly Detection and Protection), and certificates. It also provides bandwidth
management, Instant Messaging (IM) and Peer to Peer (P2P) control, NAT, port
forwarding, policy routing, DHCP server and many other powerful features.
Flexible configuration helps you set up the network and enforce security policies
efficiently. See Chapter 2 on page 37 for a more detailed overview of the ZyWALL’s
features.
The ZyWALL provides excellent throughput with the reliability of dual WAN Gigabit
Ethernet ports and load balancing. You can also use a 3G cellular USB (not
included) for a third WAN connection.
The ZyWALL lets you set up multiple networks for your company. The DeMilitarized Zone (DMZ) increases LAN security by providing separate ports for
connecting publicly accessible servers. The ZyWALL also provides two separate
LAN networks. You can set ports to be part of the LAN1, WLAN, or DMZ.
Alternatively, you can deploy the ZyWALL as a transparent firewall in an existing
network with minimal configuration.
1.2 Wall-mounting
Do the following to attach your ZyWALL to a wall.
ZyWALL USG 20/20W User’s Guide
29
Chapter 1 Introducing the ZyWALL
USG 20
1 Screw the two screws provided with your ZyWALL into the wall 150 mm apart (see
the figure in step 2). Use screws with 6 mm ~ 8 mm (0.24" ~ 0.31") wide heads.
Do not screw the screws all the way in to the wall; leave a small gap between the
head of the screw and the wall.
The gap must be big enough for the screw heads to slide into the screw slots and
the connection cables to run down the back of the ZyWALL.
Note: Make sure the screws are securely fixed to the wall and strong enough to hold
the weight of the ZyWALL with the connection cables.
2 Align the holes on the back of the ZyWALL with the screws on the wall. Hang
the ZyWALL on the screws.
30
ZyWALL USG 20/20W User’s Guide
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